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Finding the Fourth Proportional to 18,185,866.20, 27,278,799.30 and 18,185,866.20

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Solution

The fourth proportional to 18,185,866.20, 27,278,799.30 and 18,185,866.20 is: 27,278,799.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,185,866.20 : 27,278,799.30 = 18,185,866.20 : x
  2. Step 2: Convert to fraction form
    18,185,866.20/27,278,799.30 = 18,185,866.20/x
  3. Step 3: Cross multiply
    18,185,866.20x = 27,278,799.30 × 18,185,866.20
  4. Step 4: Simplify right side
    18,185,866.20x = 496,088,594,166,453.62
  5. Step 5: Solve for x
    x = 496,088,594,166,453.62/18,185,866.20
  6. Step 6: Final answer
    x = 27,278,799.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.